Aspartate transaminase (AST)

Reference

Reference
Winkel P, Statland BE and Bokelund H, 1974, Clin Chem, 20, 1520-7 , Factors Contributing to Intra-Individual Variation of serum constituents: 5. Short-Term day-to-day and within-hour variation of serum constituents in healthy subjects

Scoring

Total Score

D4

Parameter Score
1. Scale A
2. Study Population A
3. Samples A
4. Measurand D
5. Pre-Analytical A
6. Replicate Analysis A
7. Steady State B
8. Outlier Analysis C
9. Normality B
10. Variance Homogeneity C
11. ANOVA A
12. CI C
13. No of Results C
14. Concentrations A
15. Total Score D4
Comment obsolete method

Item Details

Parameter Score
Matrix Serum
Measurand Aspartate transaminase (AST)
Unit U / L
Overall Analytical Principle Method Unknown
Number of Subjects 11
Number of Subjects included in BV estimation 11
Ethinicity Caucasian
Age Mean / Median
Age Min 21.0
Age Max 27.0
Age SD
Number of Males 11
Number of Females
State of Well Being
Healthy (excl pregnant)
Diseases
Study Duration Length 2
Study Duration Units Week
Sampling Intervals, e.g. X sample(s) per Interval Unit 3
Interval Units Day
Sampling Times Start Time: 11:00
End Time: 11:30
Number of Samples 5
Average Number of Samples Used for BV Estimation 5.0
Average Number of Replicates 2.0
Estimates of CVi
Calculated Confidence Intervals of CVi Lower: , Upper:
Estimates of CVg
Calculated Confidence Intervals of CVg Lower: , Upper:
Analytical CV
Calculated Confidence Intervals of Analytical CV Lower: , Upper:
Measurand Mean
Measurand Min
Measurand Max
Measurand SD

Coding